61302142 has 8 divisors (see below), whose sum is σ = 100312632. Its totient is φ = 27864600.

The previous prime is 61302139. The next prime is 61302179. The reversal of 61302142 is 24120316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61302142² = 7515905227576328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393209 + ... + 1393252.

It is an arithmetic number, because the mean of its divisors is an integer number (12539079).

Almost surely, 2^61302142 is an apocalyptic number.

61302142 is a deficient number, since it is larger than the sum of its proper divisors (39010490).

61302142 is a wasteful number, since it uses less digits than its factorization.

61302142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786474.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61302142 is about 7829.5684427687. The cubic root of 61302142 is about 394.2985832234.

Adding to 61302142 its reverse (24120316), we get a palindrome (85422458).

It can be divided in two parts, 61 and 302142, that added together give a palindrome (302203).

The spelling of 61302142 in words is "sixty-one million, three hundred two thousand, one hundred forty-two".